Green Breathing | Real time query of PM2.5 (fine particulate matter) and Air Quality Index (AQI)

Green Breath provides free real-time PM2.5 data query, collects and analyzes all reports and scientific research conclusions related to PM2.5, and strives to find you who share the same fate with your breath. Pay attention to PM2.5 and atmospheric health with your humble efforts

PM2.5 is particulate matter with a diameter of less than or equal to 2.5 microns, also known as fine particles or lung particles, equivalent to 1/20 of the diameter of a human hair, which can directly enter the lungs. Although PM2.5 is only a small component in the Earth's atmosphere, it has significant impacts on air quality and visibility. PM2.5 has small particle size, large surface area, strong activity, and is prone to carry toxic and harmful substances (such as heavy metals, microorganisms, etc.). It also has a long residence time and long transportation distance in the atmosphere, thus having a significant impact on human health and atmospheric environmental quality.